Asme Hydrostatic Test Jun 2026

$$P_test = 1.3 \times MAWP \times \fracS_tS_d$$

| Situation | Allowed Action | |-----------|----------------| | Pneumatic test (when liquid impossible) | Pressure = 1.1 × MAWP (ASME VIII Div. 1, UG-100) – high hazard, require special precautions | | Vessel lined with refractory | Test before lining, or use lower pressure per agreement | | Jacketed vessels | Test jacket separately at 1.3 × jacket MAWP | asme hydrostatic test

The minimum hydrostatic test pressure at the top of the vessel shall be: $$P_test = 1